Downloadable networking software for building, administering, monitoring, orchestrating, securing and optimizing network infrastructures, network connectivity and network services, for communications service providers' core, edge, Metro, aggregation and access networks, public and private cloud computing systems and Mobile, broadband and enterprise networks and instructional user guides sold as a unit; downloadable software for network routers and instructional user guides sold as a unit; downloadable computer network operating system programs for managing, configuring, connecting, monitoring, orchestrating and securing routers, switches, hubs and other network nodes and instructional user guides sold as a unit; downloadable computer network operating system programs for providing a network overlay abstraction applicable for all network types, including LAN, WAN, VPN, and datacenter networks and instructional user guides sold as a unit; computer network adapters, switches, routers and hubs and instructional user guides sold as a unit; downloadable telecommunications software for transmission, switching, reception and processing of voice calls via the Internet and instructional user guides sold as a unit; downloadable computer software for interconnecting, managing, orchestrating, securing and operating local and wide area networks and instructional user guides sold as a unit; downloadable computer software for facilitating the interoperability of multiple software applications and instructional user guides sold as a unit; network orchestration system in the nature of downloadable computer programs for managing, configuring, connecting, monitoring, orchestrating, and securing routers, switches, hubs and other network nodes and instructional user guides sold as a unit; network orchestration systems in the nature of downloadable computer programs for managing deployment of information technology systems on multiple network nodes and instructional user guides sold as a unit; downloadable computer software to support software defined networking applications for managing, configuring, connecting, monitoring and securing routers, switches, hubs and other network nodes, as well as routing control, orchestration, administration and management of networks and instructional user guides sold as a unit; downloadable computer user manuals in the field of computer networks in electronically readable, machine readable or computer readable form for use with, and sold as a unit with, all the aforementioned goods